Dr. SaMeH S. Ahmed

Associate Prof. of Environmental Engineering

National emissions

National emissions

The National Emissions Standards for Hazardous Air Pollutants (NESHAPs) are emissions standards set by the United States EPA for an air pollutant not covered by NAAQSthat may cause an increase in fatalities or in serious, irreversible, or incapacitating illness. The standards for a particular source category require the maximum degree of emission reduction that the EPA determines to be achievable, which is known as the Maximum Achievable Control Technology (MACT) [1]. These standards are authorized by Section 112 of the Clean Air Act and the regulations are published in 40 CFR Parts 61 and 63.

The USEPA regulates the following hazardous air pollutants via the MACT standards:

CAS Number Chemical Name Notes
75-07-0 Acetaldehyde
60-35-5 Acetamide
75-05-8 Acetonitrile
98-86-2 Acetophenone (Methyl Phenyl Ketone)
53-96-3 2-Acetylaminofluorene
107-02-8 Acrolein
79-06-1 Acrylamide
79-10-7 Acrylic acid
107-13-1 Acrylonitrile
107-05-1 Allyl chloride (3-Chloropropene)
92-67-1 4-Aminobiphenyl
62-53-3 Aniline
90-04-0 o-Anisidine
1332-21-4 Asbestos
71-43-2 Benzene including benzene from gasoline
92-87-5 Benzidine
98-07-7 Benzotrichloride
100-44-7 Benzyl chloride
92-52-4 Biphenyl
117-81-7 Bis(2-ethylhexyl)phthalate (DEHP)
542-88-1 Bis(chloromethyl)ether
75-25-2 Bromoform (Tribromomethane)
106-99-0 1,3-Butadiene
156-62-7 Calcium cyanamide
105-60-2 Caprolactam delisted on June 18, 1996
133-06-2 Captan
63-25-2 Carbaryl
75-15-0 Carbon disulfide
56-23-5 Carbon tetrachloride (Tetrachloromethane)
463-58-1 Carbonyl sulfide
120-80-9 Catechol
133-90-4 Chloramben
57-74-9 Chlordane
7782-50-5 Chlorine
79-11-8 Chloroacetic acid
532-27-4 2-Chloroacetophenone
108-90-7 Chlorobenzene
510-15-6 Chlorobenzilate
67-66-3 Chloroform (Trichloromethane)
107-30-2 Chloromethyl methyl ether
126-99-8 Chloroprene
1319-77-3 Cresols/Cresylic acid (isomers and mixture)
95-48-7 o-Cresol
108-39-4 m-Cresol
106-44-5 p-Cresol
98-82-8 Cumene
94-75-7 2,4-D, salts and esters
3547-04-4 Dichlorodiphenyldichloroethylene (DDE)
334-88-3 Diazomethane
132-64-9 Dibenzofurans
96-12-8 1,2-Dibromo-3-chloropropane (DBCP)
84-74-2 Dibutylphthalate
106-46-7 1,4-Dichlorobenzene (p-Dichlorobenzene)
91-94-1 3,3'-Dichlorobenzidine
111-44-4 Dichloroethyl ether (Bis(2-chloroethyl)ether)
542-75-6 1,3-Dichloropropene
62-73-7 Dichlorvos
111-42-2 Diethanolamine
64-67-5 Diethyl sulfate
119-90-4 3,3'-Dimethoxybenzidine
60-11-7 Dimethyl aminoazobenzene
119-93-7 3,3'-Dimethyl benzidine
79-44-7 Dimethyl carbamoyl chloride
68-12-2 Dimethyl formamide
57-14-7 1,1-Dimethyl hydrazine
131-11-3 Dimethyl phthalate
77-78-1 Dimethyl sulfate
121-69-7 N,N-Dimethylaniline Clean Air Act erroneously lists N,N-Diethylaniline
534-52-1 4,6-Dinitro-o-cresol, and salts
51-28-5 2,4-Dinitrophenol
121-14-2 2,4-Dinitrotoluene
123-91-1 1,4-Dioxane (1,4-Diethyleneoxide)
122-66-7 1,2-Diphenylhydrazine
106-89-8 Epichlorohydrin (l-Chloro-2,3-epoxypropane)
106-88-7 1,2-Epoxybutane
140-88-5 Ethyl acrylate
100-41-4 Ethyl benzene
51-79-6 Ethyl carbamate (Urethane)
75-00-3 Ethyl chloride (Chloroethane)
106-93-4 Ethylene dibromide (1,2-Dibromoethane)
107-06-2 Ethylene dichloride (1,2-Dichloroethane)
107-21-1 Ethylene glycol
151-56-4 Ethylene imine (Aziridine)
75-21-8 Ethylene oxide
96-45-7 Ethylene thiourea
75-34-3 Ethylidene dichloride (1,1-Dichloroethane)
50-00-0 Formaldehyde
76-44-8 Heptachlor
118-74-1 Hexachlorobenzene
87-68-3 Hexachlorobutadiene
77-47-4 Hexachlorocyclopentadiene
67-72-1 Hexachloroethane
822-06-0 Hexamethylene-1,6-diisocyanate
680-31-9 Hexamethylphosphoramide
110-54-3 Hexane
302-01-2 Hydrazine
7647-01-0 Hydrochloric acid
7664-39-3 Hydrogen fluoride (Hydrofluoric acid)
7783-06-4 Hydrogen sulfide delisted on December 4, 1991
123-31-9 Hydroquinone
78-59-1 Isophorone
58-89-9 Lindane (all isomers)
108-31-6 Maleic anhydride
67-56-1 Methanol
72-43-5 Methoxychlor
74-83-9 Methyl bromide (Bromomethane)
74-87-3 Methyl chloride (Chloromethane)
71-55-6 Methyl chloroform (1,1,1-Trichloroethane)
78-93-3 Methyl ethyl ketone (2-Butanone or MEK) delisted on December 19, 2005
60-34-4 Methyl hydrazine
74-88-4 Methyl iodide (Iodomethane)
108-10-1 Methyl isobutyl ketone (Hexone or MIBK) currently under review for delisting
624-83-9 Methyl isocyanate
80-62-6 Methyl methacrylate
1634-04-4 Methyl tert-butyl ether
101-14-4 4,4'-Methylene bis(2-chloroaniline)
75-09-2 Methylene chloride (Dichloromethane)
101-68-8 Methylene diphenyl diisocyanate (MDI) currently under review for delisting
101-77-9 4,4'-Methylenedianiline
91-20-3 Naphthalene
98-95-3 Nitrobenzene
92-93-3 4-Nitrobiphenyl
100-02-7 4-Nitrophenol
79-46-9 2-Nitropropane
684-93-5 N-Nitroso-N-methylurea
62-75-9 N-Nitrosodimethylamine
59-89-2 N-Nitrosomorpholine
56-38-2 Parathion
82-68-8 Pentachloronitrobenzene (Quintobenzene)
87-86-5 Pentachlorophenol
108-95-2 Phenol
106-50-3 p-Phenylenediamine
75-44-5 Phosgene
7803-51-2 Phosphine
7723-14-0 Phosphorus
85-44-9 Phthalic anhydride
1336-36-3 Polychlorinated biphenyls (Aroclors)
1120-71-4 1,3-Propane sultone
57-57-8 beta-Propiolactone
123-38-6 Propionaldehyde
114-26-1 Propoxur (Baygon)
78-87-5 Propylene dichloride (1,2-Dichloropropane)
75-56-9 Propylene oxide
75-55-8 1,2-Propylenimine (2-Methyl aziridine)
91-22-5 Quinoline
106-51-4 Quinone
100-42-5 Styrene
96-09-3 Styrene oxide
1746-01-6 2,3,7,8-Tetrachlorodibenzo-p-dioxin
79-34-5 1,1,2,2-Tetrachloroethane
127-18-4 Tetrachloroethylene (Perchloroethylene)
7550-45-0 Titanium tetrachloride
108-88-3 Toluene
95-80-7 2,4-Toluene diamine
584-84-9 2,4-Toluene diisocyanate
95-53-4 o-Toluidine
8001-35-2 Toxaphene (chlorinated camphene)
120-82-1 1,2,4-Trichlorobenzene
79-00-5 1,1,2-Trichloroethane
79-01-6 Trichloroethylene
95-95-4 2,4,5-Trichlorophenol
88-06-2 2,4,6-Trichlorophenol
121-44-8 Triethylamine
1582-09-8 Trifluralin
540-84-1 2,2,4-Trimethylpentane
108-05-4 Vinyl acetate
593-60-2 Vinyl bromide (Bromoethene)
75-01-4 Vinyl chloride (Chloroethene)
75-35-4 Vinylidene chloride (1,1-Dichloroethylene)
1330-20-7 Xylenes (isomers and mixture)
95-47-6 o-Xylenes
108-38-3 m-Xylenes
106-42-3 p-Xylenes
n/a Antimony Compounds
n/a Arsenic Compounds inorganic including arsine
n/a Beryllium Compounds
n/a Cadmium Compounds
n/a Chromium Compounds
n/a Cobalt Compounds
n/a Coke Oven Emissions
n/a Cyanide Compounds1
n/a Glycol ethers2
n/a Lead Compounds
n/a Manganese Compounds
n/a Mercury Compounds
n/a Fine mineral fibers3
n/a Nickel Compounds
n/a Polycylic Organic Matter4
n/a Radionuclides5 including radon
n/a Selenium Compounds

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Office hours

Sunday:     12-1

Monday:     12-1

Tuesday:     10-12

Wednesday: 10-11

You are welcome to contact me by at any time

You  may also contact me via WhatsApp group, ..

Ext. 2524

Civil Eng. Students

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Love your department and be proud of your field of study

As we approaching the second midterm exams..  Get ready and remember our offices are open to answer you . do not hesitate to .contact me if you have difficulties

For CE 370 students : I do apologize for did not attend the extra lab session that proposed to be on Wednesday at 6 am.  Sorry

Good Luck


My Dear Students

Please visit the  announcement box for the relevant course and make sure that you can download and upload easily, otherwise

.contact me  to sort it out

There will be an orientation session in the midell of this term to help you select your track in Civil and Environmental Engineering


Special Issue

Electrical Power Resources: Coal versus Renewable Energy

  Published Online on January 2016

Mining Engineering

Mining engineering is an engineering discipline that involves practice, theory, science, technology, and the application of extracting and processing minerals from a naturally occurring environment. Mining engineering also includes processing minerals for additional value.

Environmental Engineering

Environmental engineers are the technical professionals who identify and design solutions for    environmental problems. Environmental engineers provide safe drinking water, treat and properly dispose of wastes, maintain air quality, control water pollution, and remediate sites contaminated due to spills or improper disposal of hazardous substances. They monitor the quality of the air, water, and land. And, they develop new and improved means to protect the environment.


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College of Eng. MU



Universities I've worked in

Assuit University (Home University), Egypt

Imperial College, London, UK

Faculty of Engineering, Al-Mergeb University, Libya

King Saud University, KSA

,Majmaah University

Majmaah University has a very nice web page that provide  all information regarding deanships, colleges, activities,  campuses and many others. Search your request in

Also visit

My Academic Pages


and give me


How many red balls we need to make balance 


Egypt vs Tunisia (Handball final)  30/1/2016

Currency Converter

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Course 2016/17-1

  1. Computer Applications in Surveying  CE 473
  2. Surveying 1 CE 370
  3. Photogrammetry CE 474
  4. Surveying II  CE 371
  5. Design I  (round 4) CE 498

The Rules of Life

Rule #7


Member of the Editorial Board: " Journal of Water Resources and Ocean Sciences"  2013


Participating in The Third International Conference on Water, Energy and Environment,(ICWEE) 2015 - American University of Sharjah, UAE 24-26 March 2015 with a Paper and Poster

New article

Recovery of Titania from Waste-Sludge of Majmaah Water Treatment Plant

"Production of Titania Nano-particles from Wast-


Coming soon

Results of M2 CE311

Student Conference

Participation  in the 6Th Student Conference

With a paper and oral presentation

From the Senior Design Project CE499 -35

See inside, the paper, and presentation

CE 370 Course

Surveying  I -  CE 370 - 2016-2017-1

Power point


Lecture notes

Second Midterm Exam


Model Answer
Inside, please follow:

Student Performance Records

CE 371 Course

Surveying II - CE 371 - 2016-2017-1


First midterm exam



See Inside

Student Performance Records

CE473 Course

Computer Applications in Surveying

CE 473


Power point


Exams + Quizzes


CE 474 Course

2015-2016-2 - Photogrammetry  CE474

Available 0-1-2-3-4 Power point


Quizzes 2 and 3 with model Answer

Available Chapter 1,2,3,4,5 Lecture notes

Report 1  Cameras Report


60 marks Exams

See Inside

Student Performance Records

CE 360 Course

Environmental Engineering 1

CE 360: Environmental Engineering 1


Y PP0-1-2-3,4 Power point
Y 1,2,3,4,5 Chapters

Water quality Poster + Climate Change Reports
will be announced (Quiz #2 will be using D2L- Online Quizzes


Quizzez 2,3 and 4 with model answer and results Exams and results

GE 306 Course

Engineering Report Writing

GE 306: Engineering Report Writing

CE 499 Course

Senior Design 2 - CE 499

Meeting on 14-4-2015

Second Best paper from Senior Design Projects in 2015

Paper title:

Evaluation of Groundwater Quality Parameters using Multivariate Statistics- a case Study of Majmaah, KSA


Abdullah A. Alzeer

Husam K. Almubark

Maijd M. Almotairi

CE 360-Summer Course

Environmental Engineering I

Welcome to CE360 second Term 2015-2016 

Engineering Practice

 Engineering Practice GE 307

What is your opinion

Contact me

Mobile: 00966598311652

[email protected]

Civil and Environmental Engineering Department
College of Engineering, Majmaah University
Majmaah, P.O. 66, 11952, KSA

Thank you

Your frequent visit to my website has helped  a lot to get the 2nd place in the university competition in the  year 1434-2013... Thanks very mush and please keep following my work

زيارتكم المتكررة لموقعي ساهمت في حصولي على المركز الثاني لاحسن المواقع الشخصية بجامعة المجمعة ...لكم جميعا خالص شكري وتقديري

CE 212 - Summer Course

Properties and Strength of Materials 1

CE 212

Y from PP0 to PP 6 + PDF Power points
Y Midterm #2 + Model Answer + results Exams
Y lab 3 Labs

Solution of Quiz 4 + Results HW

CE 311- Summer Course

Soil Mechanics and Foundation Engineering

CE 311

M2+ model Answer + PP 1-9 = PDF 1-9 all are available

Sheets 2 + 4 with model Answers

Results of M2

إحصائية الموقع

عدد الصفحات: 1412

البحوث والمحاضرات: 1544

الزيارات: 65061